s->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
}
+ s->pix_desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
+ if (!s->pix_desc) {
+ av_log(s->avctx, AV_LOG_ERROR, "Could not get a pixel format descriptor.\n");
+ return AVERROR_BUG;
+ }
+
av_frame_unref(s->picture_ptr);
if (ff_get_buffer(s->avctx, s->picture_ptr, AV_GET_BUFFER_FLAG_REF) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
if (mb_bitmask)
init_get_bits(&mb_bitmask_gb, mb_bitmask, s->mb_width * s->mb_height);
- if (s->flipped && s->avctx->flags & CODEC_FLAG_EMU_EDGE) {
- av_log(s->avctx, AV_LOG_ERROR,
- "Can not flip image with CODEC_FLAG_EMU_EDGE set!\n");
- s->flipped = 0;
- }
-
for (i = 0; i < nb_components; i++) {
int c = s->comp_index[i];
data[c] = s->picture_ptr->data[c];
reference_data[c] = reference ? reference->data[c] : NULL;
linesize[c] = s->linesize[c];
s->coefs_finished[c] |= 1;
- if (s->flipped) {
- // picture should be flipped upside-down for this codec
- int offset = (linesize[c] * (s->v_scount[i] *
- (8 * s->mb_height - ((s->height / s->v_max) & 7)) - 1));
- data[c] += offset;
- reference_data[c] += offset;
- linesize[c] *= -1;
- }
}
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
AVPacket *avpkt)
{
+ AVFrame *frame = data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
MJpegDecodeContext *s = avctx->priv_data;
if (s->bottom_field == !s->interlace_polarity)
goto not_the_end;
}
- if ((ret = av_frame_ref(data, s->picture_ptr)) < 0)
+ if ((ret = av_frame_ref(frame, s->picture_ptr)) < 0)
return ret;
+ if (s->flipped) {
+ int i;
+ for (i = 0; frame->data[i]; i++) {
+ int h = frame->height >> ((i == 1 || i == 2) ?
+ s->pix_desc->log2_chroma_h : 0);
+ frame->data[i] += frame->linesize[i] * (h - 1);
+ frame->linesize[i] *= -1;
+ }
+ }
*got_frame = 1;
if (!s->lossless &&